BURJI MAMLUK: Shaykh, 1412-1421, AR dirham (1.94g), Hamah, ND, A-991var, clearly undated, struck to a reduced weight, theoretically about 2.10g, Fine to VF, RRR. Coinage of Shaykh from Hamah mint was only discovered after the publication of SNAT-IVc by Lorenz Korn, still extremely rare.
Estimate: 100-120 USD